Observation on the spatial learning and memory in rats

Objectives:To study the laws of the spatial learning and memory in rats. Methods: The spatial learning and memory were assessed by the Morris water maze test in 10 Spraque Dawley(SD) rats.Results: To increase with the training number of times, the average latent period and the sport distance of the big rats gradually became shorten and steady. The sport speed had no obvious variety. The strategy of rats to find the hidden platform was changed gradually by edge type and random type to tendency type and straight line type. Conclusions:The Morris water maze test keeps with assessing the declarative memory of rats. Taking 120 seconds for the biggest latent period of the rats is reasonable. The rats trained of 4 days can be used as normal check against the proceeding contrast the analysis.